Washout Tooling

Eliminates the expense and long lead time associated with manufacturing multi-piece metal breakdown tooling.

Washout Tooling is commonly used to create one piece composite parts featuring trapped geometries, such as bottles, aircraft ducting, pressure tanks, struts, and mandrels. ExOne® Washout Tooling eliminates the expense and long lead time associated with manufacturing multi-piece metal breakdown tooling. It also eliminates the need for multi-piece molds that are used to make castable washout tooling media. ExOne® Washout Tooling is significantly faster than competing 3D Printed soluble tooling technology. 

Proprietary binder and coating

The ExOne® binder system has been formulated to be water soluble up to 350°F, which allows for high temperature curing of many composite materials. The printing media available are silica and ceramic sand. After printing, a sealant coating is applied to the surface of the tooling to prevent resin migration into the tool from the composite part. Coating options include a spray-on coating system based on the binder chemistry, which is also water soluble, or a Teflon® tape wrap. When the composite lay-up is completed and cured, tap water is applied to the mandrel ends to begin the washout process. Washout is completed in a matter of minutes and leaves no residual material behind.


Specifications

Material Properties  ExOne®  Washout Tooling
Silica Sand Ceramic Sand
 Density 90 lb/ft3
95 lb/ft3
Maximum Use Temperature  350°F  350°F
 Coefficient of Thermal Expansion (RT-350°F)  11 ppm/°F  2 ppm/°F
 Compressive Strength  > 500 psi  > 500 psi
 Tolerance (As-Printed)  +/- 0.015”  +/- 0.015”
 Coating Options  Teflon tape or spray on soluble coating
 Washout Method  Room temperature tap water



350oF Use Temperature

  • 350oF Use Temperature

  • Washes out with water

  • Low or High CTE print media

  • Low cost

  • Fast manufacturing time

  • Design complexity

  • Reusable media

  • Autoclave processing compatibility

Explore Your Possibilities

To learn more about Washout Tooling
Contact Us

Das könnte Sie auch interessieren